EP0539669B1 - Method for operating a plate feeding system for punching presses. - Google Patents
Method for operating a plate feeding system for punching presses. Download PDFInfo
- Publication number
- EP0539669B1 EP0539669B1 EP92113561A EP92113561A EP0539669B1 EP 0539669 B1 EP0539669 B1 EP 0539669B1 EP 92113561 A EP92113561 A EP 92113561A EP 92113561 A EP92113561 A EP 92113561A EP 0539669 B1 EP0539669 B1 EP 0539669B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gripping means
- plate
- punching
- axis
- feed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004080 punching Methods 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 7
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/444—Tool engages work during dwell of intermittent workfeed
- Y10T83/445—With work-moving clamp jaw
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/444—Tool engages work during dwell of intermittent workfeed
- Y10T83/463—Work-feed element contacts and moves with work
- Y10T83/4632—Comprises a work-moving gripper
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/444—Tool engages work during dwell of intermittent workfeed
- Y10T83/4637—With means to guide, position, or present work to work-feed means
- Y10T83/464—Means to transport work to work-feed means
Definitions
- the invention relates to a method for operating a sheet system for punching presses according to the preamble of claim 1.
- Such sheet plant systems are used to feed sheets, for example made of aluminum sheet, into position in a punching press which punches out a predetermined number of blanks from the sheet.
- the sheet is clamped in the gripping means and moved by the feed slide between the punching tools, the movement normally taking place along two orthogonal axes, since an offset division is selected in order to make better use of the material.
- DE-U-83 18 201 this document contains the features of the preamble of claim 1 is a table system has become known, in which the feed carriage has two gripping tongs which grasp the panel at the rear edge and advance it step by step into the machine tool.
- the feed is coupled to the movement of the machine tool, for example the punch press, in such a way that the feed takes place at a time in which the tool carries out a return stroke and is therefore outside the working plane.
- the feed carriage After a work cycle for the board has ended, the feed carriage returns to a starting or receiving position, in which it grips the next board.
- This table is pushed in the correct position by a loading or feed carriage from a positioning station into the loading position in which the table is located directly in front of the tool.
- the feed carriage moves under the feed device in order to bring the metal sheet into the loading or transfer position.
- the drive for the feed carriage is normally designed so that the feed carriage always brings the sheet into the same position, regardless of the size of the sheet and the die cut.
- the disengagement of the punch press is not insignificant Disadvantage. Firstly, there is considerable wear. On the other hand, the punching press can only slowly increase to the working speed on each sheet when it is engaged. This can lead to problems when ejecting the stamped parts.
- the invention is based on the object of specifying a method for operating a sheet placement system for punching presses which significantly reduces the transition time for the sheets as the press continues to run.
- the panel is not grasped on the rear edge but on opposite sides. This eliminates the need to feed the first gripping means behind the edge of the board and the further opposite path to the edge of the board.
- the transfer position of the board is no longer with the front edge immediately in front of the tool, but in the area of the tool. This means, however, that the feed carriage only brings the board into the transfer position when the gripping means have reached their pick-up position along both axes.
- the handover of the board in the handover position to the first Gripping means takes place during the first die cut, during which the sheet is fixed by the die.
- both axes of the feed ie the first gripping means and the feed slide, move into the starting or receiving position in which the new sheet is picked up.
- the path to be covered by the gripping means is considerably shorter than the path of the feed carriage along the longitudinal axis.
- first gripping means are outside the edges of the board during the retraction, it is necessary that they are returned along the second axis in the direction of the board as soon as they have reached their pick-up position along the first axis.
- This can be the case, for example, with scrolled sheets that have no straight longitudinal edges.
- the feed carriage moves the sheet through the open gripping means and along the first axis to the transfer position. The panel is therefore pushed forward through the open collets, while at the same time they are moved back into the receiving position.
- the measures described reduce the unproductive time to about a third compared to the systems described above, ie at 200 strokes per minute, only two empty strokes are required. This increases the overall performance of a punch press, depending on the sheet size, by 12 to 17%.
- the effort required is no higher than with conventional systems. Only the feed carriage has to be controlled more precisely in coordination with the adjustment movements of the feed system and the cycle of the press. The feed is usually controlled numerically. The software for the numerical control must therefore be supplemented with the control of the feed carriage. No further effort is required.
- 10 is a punch press of conventional design. It has three punching tools 12 which are moved perpendicular to the plane of the drawing by means of a plunger.
- a feed carriage 16 is adjustable along a guide 18 in the direction of the double arrow 20. It has holders 22, 24 for collets 26, 28 as the first gripping means. Carriage 16, holder 22, 24 and pliers 26, 28 are actuated by suitable adjustment drives, which in turn are controlled by a suitable control device.
- a feed carriage 30 with two collets 32, 34 as the second gripping means is adjustable along a carriage guide 36 in the direction of the double arrow 38.
- the drive for the carriage 30 is also not shown.
- the collets 22, 24 and 32, 34 can be of conventional construction, for example have a rigid jaw and a movable jaw, the movable jaw being actuated by a suitable drive.
- Fig. 2 shows a panel 40 to be processed in a position in which the last cut is made.
- the tongs 26, 28 move due to the return movement of the carriage 16 to the rear, the panel 40a being advanced through the opened pliers, ie within the jaws of the pliers. 1 the sheet 40a is fed into the press 10, the transfer position corresponding to the position in which the punching tools 12 make the first cut. Since the punch press 10 continues to run during the operations described, it must be ensured that the feed carriage 30 only pushes the table 40a into the press 10 when the collets 26, 28 have reached the receiving position shown in FIG. 1. At the moment when the punching tools 12 cut the plate 40a and thus fix it at the same time, the collets 32, 34 are opened and the collets 26, 28 are closed, so that the transfer from the feed carriage 30 to the feed carriage therefore takes place.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
- Press Drives And Press Lines (AREA)
- Details Of Cutting Devices (AREA)
Description
Die Erfindung bezieht sich auf ein Verfahren zum Betreiben eines Tafelanlagesystems für Stanzpressen nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a method for operating a sheet system for punching presses according to the preamble of claim 1.
Derartige Tafelanlagesysteme dienen dazu, Tafeln, beispielsweise aus Aluminiumblech, positioniert einer Stanzpresse zuzuführen, die eine vorgegebene Anzahl von Rohlingen aus der Tafel ausstanzt. Die Tafel wird in den Greifmitteln eingespannt und vom Vorschubschlitten zwischen den Stanzwerkzeugen bewegt, wobei die Bewegung normalerweise entlang zweier orthogonaler Achsen stattfindet, da zwecks günstiger Materialausnutzung eine versetzte Teilung gewählt wird. Aus dem DE-U-83 18 201 (Dieses Dokument enthält die Merkmale des Oberbegriffs des Anspruchs 1) ist ein Tafelanlagesystem bekanntgeworden, bei dem der Vorschubschlitten zwei Greifzangen aufweist, welche die Tafel an der hinteren Kante erfassen und schrittweise in die Werkzeugmaschine vorschieben. Der Vorschub ist an die Bewegung der Werkzeugmaschine, beispielsweise der Stanzpresse, gekoppelt derart, daß der Vorschub in einer Zeit erfolgt, in der das Werkzeug einen Rückhub ausführt und sich mithin außerhalb der Arbeitsebene befindet. Nach Beendigung eines Arbeitszyklus für die Tafel fährt der Vorschubschlitten in eine Ausgangs-oder Aufnahmeposition zurück, in der er die nächste Tafel erfaßt. Diese Tafel wird von einem Lade- oder Vorlageschlitten aus einer Positionierstation lagerichtig in die Ladeposition vorgeschoben, in der sich die Tafel unmittelbar vor dem Werkzeug befindet. Hierbei bewegt sich der Vorlageschlitten unter der Vorschubvorrichtung hindurch, um die Blechtafel in die Lade- oder Übergabeposition zu bringen. Der Antrieb für den Vorlageschlitten ist normalerweise so ausgeführt, daß der Vorlageschlitten die Tafel stets in die gleiche Position bringt, unabhängig von der Größe der Blechtafel und dem Stanzbild.Such sheet plant systems are used to feed sheets, for example made of aluminum sheet, into position in a punching press which punches out a predetermined number of blanks from the sheet. The sheet is clamped in the gripping means and moved by the feed slide between the punching tools, the movement normally taking place along two orthogonal axes, since an offset division is selected in order to make better use of the material. From DE-U-83 18 201 (this document contains the features of the preamble of claim 1) is a table system has become known, in which the feed carriage has two gripping tongs which grasp the panel at the rear edge and advance it step by step into the machine tool. The feed is coupled to the movement of the machine tool, for example the punch press, in such a way that the feed takes place at a time in which the tool carries out a return stroke and is therefore outside the working plane. After a work cycle for the board has ended, the feed carriage returns to a starting or receiving position, in which it grips the next board. This table is pushed in the correct position by a loading or feed carriage from a positioning station into the loading position in which the table is located directly in front of the tool. Here, the feed carriage moves under the feed device in order to bring the metal sheet into the loading or transfer position. The drive for the feed carriage is normally designed so that the feed carriage always brings the sheet into the same position, regardless of the size of the sheet and the die cut.
Von dem letzten Vorschubschritt einer voraufgehenden Tafel bis zur Übernahme der nachfolgenden Tafel in der Vorschubvorrichtung vergeht zwangsläufig eine gewisse Zeit, die deutlich länger ist als die Taktzeit der Stanzpresse. Bei dem bekannten Tafelanlagesystem müssen die Spannzangen zunächst von der alten Tafel entfernt und in eine Position hinter die neue Tafel verfahren werden, um sie anschließend wieder in entgegengesetzter Verstellrichtung mit der hinteren Kante der Tafel in Eingriff zu bringen. Die Spannzangen legen daher zwei unterschiedliche Verstellwege zurück, was für jeden einen Beschleunigs- und einen Abbremsvorgang bedeutet. Bei den schnellsten bekannten Systemen beträgt diese unproduktive Wechselzeit etwa 1,8 Sekunden. Das entspricht bei 200 Hüben pro Minute etwa 6 Leerhüben der Stanzpresse.From the last feed step of a preceding sheet to the takeover of the subsequent sheet in the feed device, a certain time inevitably passes, which is significantly longer than the cycle time of the punch press. At In the known sheet system, the collets must first be removed from the old sheet and moved into a position behind the new sheet, in order then to bring them back into engagement with the rear edge of the sheet in the opposite direction of adjustment. The collets therefore cover two different adjustment paths, which means accelerating and braking for each. In the fastest known systems, this unproductive changeover time is about 1.8 seconds. At 200 strokes per minute, this corresponds to about 6 empty strokes of the punch press.
Aus der DE-OS 34 37 642 ist bereits ein Tafelanlagesystem bekanntgeworden, das ohne unproduktive Wechselzeiten arbeitet. Das bekannte System erfordert zwei separate Vorschubvorrichtungen mit jeweils an einer Seite der Tafel angreifenden Spannzangen, die abwechselnd zum Einsatz kommen. Ein derartiges System ist jedoch verhältnismäßig aufwendig.From DE-OS 34 37 642 a table system has already become known which works without unproductive change times. The known system requires two separate feed devices, each with collets acting on one side of the board, which are used alternately. However, such a system is relatively complex.
Bei mit Vorlageschlitten arbeitenden Systemen ist zwar denkbar, zur Vermeidung von Leerhüben die Presse so lange abzuschalten, bis die Übernahme einer neuen Tafel durch die Greifmittel des Vorschubschlittens stattgefunden hat.In systems working with feed slides, it is conceivable to switch off the press to avoid empty strokes until a new sheet has been taken over by the gripping means of the feed slide.
Das Auskuppeln der Stanzpresse hat jedoch nicht unerhebliche Nachteile. Zum einen findet ein beträchtlicher Verschleiß statt. Zum anderen kann die Stanzpresse beim Einkuppeln bei jeder Tafel erst langsam auf die Arbeitsdrehzahl hochfahren. Dies führt unter Umständen zu Problemen beim Auswerfen der Stanzteile.The disengagement of the punch press is not insignificant Disadvantage. Firstly, there is considerable wear. On the other hand, the punching press can only slowly increase to the working speed on each sheet when it is engaged. This can lead to problems when ejecting the stamped parts.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Betreiben eines Tafelanlegesystems für Stanzpressen anzugeben, das die Übergangszeit bei weiterlaufender Presse für die Tafeln deutlich verringert.The invention is based on the object of specifying a method for operating a sheet placement system for punching presses which significantly reduces the transition time for the sheets as the press continues to run.
Diese Aufgabe wird gelöst durch die Merkmale des Patentanspruchs 1. In den Ansprüchen 2 und 3 werden besondere Ausführungsarten der Erfindung angegeben.This object is achieved by the features of claim 1. Particular embodiments of the invention are specified in claims 2 and 3.
Bei dem erfindungsgemäßen Verfahren wird die Tafel nicht an der hinteren Kante, sondern an gegenüberliegenden Seiten erfaßt. Dadurch entfällt der Vorschub der ersten Greifmittel hinter die Tafelkante und der weitere entgegengesetzte Weg bis zur Tafelkante hin. Die Übergabeposition der Tafel ist nicht mehr mit der vorderen Kante unmittelbar vor dem Werkzeug, sondern im Bereich des Werkzeugs. Dies bedeutet indessen, daß der Vorlageschlitten die Tafel erst in die Übergabeposition bringt, wenn die Greifmittel ihre Aufnahmeposition entlang beider Achsen erreicht haben. Die Übergabe der Tafel in der Übergabeposition an die ersten Greifmittel findet während des ersten Stanzschnittes statt, während dem die Tafel durch das Stanzwerkzeug fixiert ist.In the method according to the invention, the panel is not grasped on the rear edge but on opposite sides. This eliminates the need to feed the first gripping means behind the edge of the board and the further opposite path to the edge of the board. The transfer position of the board is no longer with the front edge immediately in front of the tool, but in the area of the tool. This means, however, that the feed carriage only brings the board into the transfer position when the gripping means have reached their pick-up position along both axes. The handover of the board in the handover position to the first Gripping means takes place during the first die cut, during which the sheet is fixed by the die.
Nach dem Ende der Verarbeitung der vorangegangenen Tafel fahren beide Achsen des Vorschubs, d.h. die ersten Greifmittel und der Vorschubschlitten in die Ausgangs- oder Aufnahmeposition, in der die neue Tafel aufgenommen wird. Der von den Greifmitteln zurückzulegende Weg ist systemgemäß erheblich kürzer als der Weg des Vorschubschlittens entlang der Längsachse. Sobald also die ersten Greifmittel in der Querachse ihre Tafelübernahmeposition erreicht haben oder sich außerhalb des Vorschubweges der neuen Tafel befinden, kann die neue Tafel von dem Vorlageschlitten in das Stanzwerkzeug hinein vorgeschoben werden, und zwar gleichzeitig mit dem Zurückfahren der ersten Greifmittel entlang der Längsachse. Befinden sich die ersten Greifmittel während des Zurückfahrens außerhalb der Kanten der Tafel, ist erforderlich, daß sie entlang der zweiten Achse in Richtung Tafel wieder zugestellt werden, sobald sie entlang der ersten Achse ihre Aufnahmeposition erreicht haben. Dies kann zum Beispiel bei gescrollten Tafeln der Fall sein, welche keine geraden Längskanten aufweisen. Bei Tafeln mit geraden Längskanten ist es indessen von Vorteil, wenn gemäß einer Ausgestaltung der Erfindung der Vorlageschlitten die Tafel durch die geöffneten Greifmittel und entlang der ersten Achse zur Übergabeposition vorschiebt. Die Tafel wird mithin durch die geöffneten Spannzangen vorgeschoben, während diese gleichzeitig zurück in die Aufnahmeposition verstellt werden.After the processing of the previous sheet has ended, both axes of the feed, ie the first gripping means and the feed slide, move into the starting or receiving position in which the new sheet is picked up. According to the system, the path to be covered by the gripping means is considerably shorter than the path of the feed carriage along the longitudinal axis. As soon as the first gripping means in the transverse axis have reached their sheet transfer position or are outside the feed path of the new sheet, the new sheet can be pushed into the punching tool by the feed carriage, and this simultaneously with the retraction of the first gripping means along the longitudinal axis. If the first gripping means are outside the edges of the board during the retraction, it is necessary that they are returned along the second axis in the direction of the board as soon as they have reached their pick-up position along the first axis. This can be the case, for example, with scrolled sheets that have no straight longitudinal edges. In the case of panels with straight longitudinal edges, however, it is advantageous if according to one embodiment of the invention the feed carriage moves the sheet through the open gripping means and along the first axis to the transfer position. The panel is therefore pushed forward through the open collets, while at the same time they are moved back into the receiving position.
Die beschriebenen Maßnahmen verringern die unproduktive Zeit auf etwa ein Drittel gegenüber den vorstehend beschriebenen Systemen, d.h. bei 200 Hüben pro Minute sind nur noch zwei Leerhübe erforderlich. Dadurch erhöht sich die Gesamtleistung einer Stanzpresse je nach Tafelgröße um 12 bis 17%. Der erforderliche Aufwand ist im Hinblick auf die konstruktive Ausführung nicht höher als bei herkömmlichen Systemen. Lediglich der Vorlageschlitten muß präziser gesteuert werden in Abstimmung mit den Verstellbewegungen des Vorschubsystems und dem Takt der Presse. Der Vorschub wird üblicherweise numerisch gesteuert. Die Software für die numerische Steuerung ist mithin zu ergänzen um die Steuerung des Vorlageschlittens. Ein weitergehender Aufwand ist nicht erforderlich.The measures described reduce the unproductive time to about a third compared to the systems described above, ie at 200 strokes per minute, only two empty strokes are required. This increases the overall performance of a punch press, depending on the sheet size, by 12 to 17%. With regard to the design, the effort required is no higher than with conventional systems. Only the feed carriage has to be controlled more precisely in coordination with the adjustment movements of the feed system and the cycle of the press. The feed is usually controlled numerically. The software for the numerical control must therefore be supplemented with the control of the feed carriage. No further effort is required.
Die Erfindung wird nachfolgend anhand von Zeichnungen näher erläutert.
- Fig. 1
- zeigt eine Draufsicht auf ein schematisch dargestelltes Tafelanlagesystem nach der Erfindung während der Übergabe von einem Vorlageschlitten auf eine Vorschubvorrichtung.
- Fig. 2
- zeigt eine ähnliche Darstellung wie Fig. 1 mit einer Tafel am Ende der Verarbeitung.
- Fig. 3
- zeigt eine ähnliche Darstellung wie die Figuren 1 und 2 während des Vorschubs einer Tafel von dem Vorlageschlitten und der Verstellung der Vorschubvorrichtung in die Übernahmeposition nach Fig. 1.
- Fig. 1
- shows a plan view of a schematically illustrated table system according to the invention during the transfer from a feed carriage to a feed device.
- Fig. 2
- shows a representation similar to Fig. 1 with a panel at the end of processing.
- Fig. 3
- 1 shows a representation similar to that of FIGS. 1 and 2 during the advance of a sheet from the feed carriage and the adjustment of the advance device into the take-over position according to FIG. 1.
In den Figuren 1 bis 3 ist mit 10 eine Stanzpresse herkömmlicher Bauart bezeichnet. Sie weist drei Stanzwerkzeuge 12 auf, die mittels eines Stößels senkrecht zur Zeichenebene bewegt werden. Ein Vorschubschlitten 16 ist entlang einer Führung 18 in Richtung des Doppelpfeils 20 verstellbar. Er weist Halter 22, 24 für Spannzangen 26, 28 als erste Greifmittel auf. Schlitten 16, Halter 22, 24 und Zangen 26, 28 werden durch geeignete Verstellantriebe betätigt, die wiederum von einer geeigneten Steuervorrichtung gesteuert werden.In Figures 1 to 3, 10 is a punch press of conventional design. It has three
Ein Vorlageschlitten 30 mit zwei Spannzangen 32, 34 als zweite Greifmittel ist entlang einer Schlittenführung 36 in Richtung des Doppelpfeils 38 verstellbar. Auch der Antrieb für den Schlitten 30 ist nicht dargestellt.A
Die Spannzangen 22, 24 bzw. 32, 34 können herkömmlichen Aufbaus sein, beispielsweise eine starre Backe und eine bewegliche Backe aufweisen, wobei die bewegliche Backe durch einen geeigneten Antrieb betätigt wird.The
Fig. 2 zeigt eine zu bearbeitende Tafel 40 in einer Position, in der der letzte Schnitt ausgeführt wird. Sobald die Stanzwerkzeuge 12 mit der Tafel 40 in Eingriff sind, können die Spannzangen 26, 28 öffnen, und der Vorschubschlitten kann die Spannzangen 26, 28 in eine Übergabeposition zurückverstellen, wie sie in Fig. 1 dargestellt ist. Während dieser Zeit haben die Spannzangen 32, 34 bereits eine neue Tafel erfaßt. Haben die Spannzangen 26, 28 ihre Position entlang der Querachse 21 erreicht, ist die Aufnahmeposition auf diese Achse erhalten. Dies beruht darauf, daß die Zangen 26, 28 die Tafeln am hinteren Ende an den Seitenkanten an gegenüberliegenden Seiten erfassen. Während mithin der Vorlageschlitten 30 die neue Tafel 40a entlang der Längsachse 20 in Richtung Stanzpresse 10 vorbewegt, bewegen sich die Zangen 26, 28 aufgrund der Rückbewegung des Schlittens 16 nach hinten, wobei die Tafel 40a durch die geöffneten Zangen, d.h. innerhalb des Mauls der Zangen, vorgeschoben wird. Der Vorschub der Tafel 40a erfolgt gemäß Fig. 1 in die Presse 10 hinein, wobei die Übergabeposition derjenigen Position entspricht, in der die Stanzwerkzeuge 12 den ersten Schnitt ausführen. Da die Stanzpresse 10 während der beschriebenen Vorgänge weiterläuft, ist dafür zu sorgen, daß der Vorlageschlitten 30 die Tafel 40a erst dann in die Presse 10 einschiebt, wenn die Spannzangen 26, 28 die in Fig. 1 dargestellte Aufnahmeposition erreicht haben. In dem Augenblick, in dem die Stanzwerkzeuge 12 die Tafel 40a schneiden und mithin gleichzeitig fixieren, werden die Spannzangen 32, 34 geöffnet und die Spannzangen 26, 28 geschlossen, so daß mithin die Übergabe vom Vorlageschlitten 30 auf den Vorschubschlitten stattfindet.Fig. 2 shows a panel 40 to be processed in a position in which the last cut is made. Once the dies 12 are engaged with the panel 40, the
Da die Spannzangen 26, 28 nur in einer Richtung, nämlich entlang der Achse 20 verstellt werden müssen, ergibt sich durch die beschriebene Übergabe von Tafeln vom Ladeschlitten 30 auf den Vorschubschlitten eine minimale Zeit, die zum Beispiel nur zwei Leerhüben der Presse 10 entspricht. Diese Wechselzeit ist weitaus geringer als bei herkömmlichen Vorschubsystemen.Since the
Claims (3)
- A method to operate a plate positioning system for punching presses, wherein a feeding slide (10) is guided by slide guide means (18) and moved along a first axis (20) to and from the punching tool (12) of the punching press (10), at least a pair of releasable gripping means (26, 28), preferably gripping pliers are guided by the slide (16) and moved along a second axis (21) normal to said first axis (20), and a serving slide (30) including releasable gripping means, preferably gripping pliers, is moved along the first axis (20) to advance a plate into a transfer position to be taken by said first gripping means, characterized in that during a punching cut of the punching press (10) the plate (40a) is gripped by the gripping means (26, 28) in the transfer position corresponding to the plate position for the first cut at opposite sides of the plate (40, 40a) at the trailing edge thereof if looking from the punching press (10) and that the serving slide (30) brings the following plate (40a) into the transfer position only then when the first gripping means (26, 28) have reached their receiving position along both axes (20, 21).
- The method of claim 1, characterized in that the first gripping means (26, 28) are moved back into the receiving position during or after the last cut of the punching tools (12) and after the opening of the first gripping means (26, 28) by means of a control device and an associated driving means.
- The method of claim 2, characterized in that the serving slide moves the plate (40a) along the first axis into the transfer position through the opened first gripping means (26, 28).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4135901 | 1991-10-31 | ||
| DE4135901A DE4135901C2 (en) | 1991-10-31 | 1991-10-31 | Feed device on punch presses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0539669A1 EP0539669A1 (en) | 1993-05-05 |
| EP0539669B1 true EP0539669B1 (en) | 1995-05-31 |
Family
ID=6443827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92113561A Expired - Lifetime EP0539669B1 (en) | 1991-10-31 | 1992-08-08 | Method for operating a plate feeding system for punching presses. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5400652A (en) |
| EP (1) | EP0539669B1 (en) |
| JP (1) | JP3374288B2 (en) |
| DE (3) | DE4135901C2 (en) |
| DK (1) | DK0539669T3 (en) |
| ES (1) | ES2074776T3 (en) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4345348C2 (en) * | 1993-03-24 | 1997-01-30 | Blechbearbeitungsmaschinenwerk | Switching device of the separating device to other sheet metal strip formats |
| DE4345184C2 (en) * | 1993-03-26 | 1997-04-03 | Haar Maschbau Alfons | Sheet system and feed system for presses |
| DE59404380D1 (en) * | 1993-03-26 | 1997-11-27 | Haar Maschbau Alfons | Press with a table system and feed system |
| JP2787038B2 (en) * | 1994-06-06 | 1998-08-13 | セイコープレシジョン株式会社 | Substrate positioning and gripping device |
| US5694823A (en) * | 1994-10-18 | 1997-12-09 | The Challenge Machinery Company | Document trimming apparatus |
| IT1298389B1 (en) * | 1997-12-24 | 2000-01-05 | Giben Impianti Spa | PANEL SAW PANEL CUTTING MACHINE AND RELEVANT CUTTING METHOD. |
| JP4035901B2 (en) * | 1998-10-09 | 2008-01-23 | 村田機械株式会社 | Plate material transfer device |
| DE19920241B4 (en) * | 1999-05-03 | 2006-07-20 | Gebrüder Leonhardt GmbH & Co. KG | Process for the strip-shaped processing of tabular workpieces |
| JP2001062525A (en) * | 1999-08-25 | 2001-03-13 | Matsushita Electric Ind Co Ltd | Steel sheet die cutting device |
| EP1304180B1 (en) * | 2001-10-15 | 2004-09-29 | Elpatronic Ag | Feeding of sheets to a punching machine |
| DE10202994B4 (en) | 2002-01-26 | 2007-10-31 | Alfons Haar, Maschinenbau Gmbh & Co.Kg | Method for operating a sheet-fed system for punch presses and connecting means for carrying out the method |
| DE202007018872U1 (en) * | 2007-03-02 | 2009-12-17 | Holzma Plattenaufteiltechnik Gmbh | Panel dividing plant for dividing plate-shaped workpieces |
| US8118197B2 (en) * | 2007-06-18 | 2012-02-21 | Precision Valve Corporation | Method of making aerosol valve mounting cups and resultant cups |
| US20090158580A1 (en) * | 2007-06-18 | 2009-06-25 | Precision Valve Corporation | Method of making aerosol valve mounting cups and resultant cups |
| WO2010086087A1 (en) * | 2009-02-02 | 2010-08-05 | Bobst Sa | Device for positioning a plate element in an insertion station of a processing machine |
| JP5541796B2 (en) * | 2010-10-21 | 2014-07-09 | 旭精機工業株式会社 | Material transfer device |
| DE102013207788A1 (en) * | 2013-04-29 | 2014-10-30 | Weber Maschinenbau Gmbh Breidenbach | Method and device for slicing products |
| DE102013007556A1 (en) * | 2013-05-04 | 2014-11-06 | Ima Klessmann Gmbh Holzbearbeitungssysteme | Method of editing a large format plate |
| CN103658299A (en) * | 2013-11-19 | 2014-03-26 | 嘉兴永发电子有限公司 | Stamping device of ventilation plate |
| ITUA20162662A1 (en) * | 2016-04-18 | 2017-10-18 | Bortolin Kemo Spa | ADVANCEMENT SHEET PRESS |
| CN105858209B (en) * | 2016-06-01 | 2018-05-01 | 河北港安环保科技有限公司 | A kind of scrap metal block conveying mechanism |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1650748A (en) * | 1926-12-31 | 1927-11-29 | George P Thomas | Metal-punching machine |
| DE617482C (en) * | 1933-01-03 | 1935-08-23 | Erdmann Kircheis Fa | Punch with several cutting punches arranged in a line and automatic material feed |
| GB490291A (en) * | 1937-02-11 | 1938-08-11 | Charles Joseph Rhodes | Improvements in and relating to presses for cutting sheet metal |
| DE1111133B (en) * | 1954-07-01 | 1961-07-20 | Beteiligungs & Patentverw Gmbh | Workpiece feed device for punch presses or similar machine tools |
| US2966086A (en) * | 1955-07-02 | 1960-12-27 | Robert L Sjostrom | Fabric cutting machine |
| US3424044A (en) * | 1966-03-10 | 1969-01-28 | Miehle Goss Dexter Inc | Continuous three-knife trimmer |
| US3449991A (en) * | 1967-02-06 | 1969-06-17 | Dennis Daniels | Punch press |
| US3466958A (en) * | 1967-02-16 | 1969-09-16 | Westinghouse Electric Corp | Material cutting control system providing reduced material wastage |
| SE392704B (en) * | 1974-07-08 | 1977-04-18 | Esab Hebe Ab | PROCEDURE AND DEVICE FOR STEP MOVEMENT OF SEVERAL LARGE PLATES OF DIFFERENT SIZE |
| JPS55131451A (en) * | 1979-03-24 | 1980-10-13 | Murata Mach Ltd | Positioning and clamping plate material |
| IT1112725B (en) * | 1979-04-24 | 1986-01-20 | Argon Service Ltd | SCREEN PRINTING MACHINE WITH CLAMPS AND DISPOSABLE PLAN FOR PRINTING |
| US4372538A (en) * | 1981-01-05 | 1983-02-08 | C-R-O, Inc. | Metal cutting machine with cut piece pickup and transport magnets |
| US4382395A (en) * | 1981-04-02 | 1983-05-10 | Thomas Haar | Loading device for a machine tool, particularly for machining panels of sheet metal or other materials |
| IT1193054B (en) * | 1982-09-27 | 1988-06-02 | E Soc Automatismi Elettronici | METHOD AND METAL BAR CUTTING SYSTEM IN LESS LENGTH SECTIONS |
| DE8318201U1 (en) * | 1983-06-23 | 1983-09-22 | Alfons Haar, Maschinenbau GmbH & Co KG, 2000 Hamburg | Loading and advancing device for inserting and advancing sheet metal in a machine tool |
| DE3437642C2 (en) * | 1984-10-13 | 1994-03-31 | Haar Maschbau Alfons | Feed device for inserting and feeding sheets into a punch |
| US4621552A (en) * | 1985-01-04 | 1986-11-11 | Cencorp | Method and apparatus for separating printed-circuit boards from multi-board panels |
| DE3911639A1 (en) * | 1989-04-10 | 1990-10-11 | Erwin Jenkner | METHOD AND DEVICE FOR PROGRAM-CONTROLLED LENGTH AND CROSS-DIVISION OF WORKPIECE PLATES |
| DE4013418A1 (en) * | 1990-04-26 | 1991-11-07 | Wolfgang Mohr | METHOD AND DEVICE FOR CONVERTING STACKED, SHEET-SHAPED GOODS FROM AN OUTPUT FIELD TO AN INPUT FIELD OF A CUTTING MACHINE |
-
1991
- 1991-10-31 DE DE4135901A patent/DE4135901C2/en not_active Expired - Lifetime
- 1991-10-31 DE DE9114312U patent/DE9114312U1/en not_active Expired - Lifetime
-
1992
- 1992-08-08 DE DE59202397T patent/DE59202397D1/en not_active Expired - Lifetime
- 1992-08-08 ES ES92113561T patent/ES2074776T3/en not_active Expired - Lifetime
- 1992-08-08 DK DK92113561.2T patent/DK0539669T3/en active
- 1992-08-08 EP EP92113561A patent/EP0539669B1/en not_active Expired - Lifetime
- 1992-10-29 JP JP31645692A patent/JP3374288B2/en not_active Expired - Lifetime
-
1993
- 1993-12-23 US US08/173,272 patent/US5400652A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0539669A1 (en) | 1993-05-05 |
| DE9114312U1 (en) | 1992-03-12 |
| DE4135901C2 (en) | 1994-07-07 |
| ES2074776T3 (en) | 1995-09-16 |
| DE4135901A1 (en) | 1993-05-06 |
| JP3374288B2 (en) | 2003-02-04 |
| DK0539669T3 (en) | 1995-10-16 |
| US5400652A (en) | 1995-03-28 |
| JPH05208232A (en) | 1993-08-20 |
| DE59202397D1 (en) | 1995-07-06 |
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